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From: Michal Hocko <mhocko@suse.com>
To: Waiman Long <llong@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Vladimir Davydov <vdavydov.dev@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Vlastimil Babka <vbabka@suse.cz>, Roman Gushchin <guro@fb.com>,
	linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
	linux-mm@kvack.org, Shakeel Butt <shakeelb@google.com>,
	Muchun Song <songmuchun@bytedance.com>,
	Luis Goncalves <lgoncalv@redhat.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH] mm/memcg: Disable task obj_stock for PREEMPT_RT
Date: Wed, 4 Aug 2021 10:52:35 +0200	[thread overview]
Message-ID: <YQpVU4/QNE251IcX@dhcp22.suse.cz> (raw)
In-Reply-To: <8953e099-356e-ee09-a701-f4c7f4cda487@redhat.com>

On Tue 03-08-21 21:40:35, Waiman Long wrote:
[...]
> The purpose of this series is to improve kmem_cache allocation and free
> performance for non-RT kernel. So not disabling/enabling interrupt help a
> bit in this regard.

Johannes has explained the irq disabling role in the stock draining just
yesterday. Have a look at http://lkml.kernel.org/r/YQlPiLY0ieRb704V@cmpxchg.org
-- 
Michal Hocko
SUSE Labs

  reply	other threads:[~2021-08-04  8:52 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-03 17:55 Waiman Long
2021-08-03 23:21 ` Thomas Gleixner
2021-08-04  1:40   ` Waiman Long
2021-08-04  8:52     ` Michal Hocko [this message]
2021-08-04 16:00     ` Waiman Long
2021-08-04  7:39   ` Vlastimil Babka
2021-08-04  8:33     ` Michal Hocko
2021-08-09  9:07       ` Michal Hocko
2021-08-09  9:28         ` Vlastimil Babka

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